Fernand Cuville 1917, 7 June (or later) A crater (diameter 116 m, depth 45 m) after the explosion of 19 mines placed underneath German positions near Messines in West Flanders by the British on June 7, 1917
.A total of about 10,000 soldiers died, amongst them almost all of the 3rd Royal Bavarian Division. The mines consisted of 21 t of explosives (Ammonal). The blast was one of the biggest non-nuclear explosions of all times and was audible in Dublin and London. World War I, Western Front.
Messines, Flanders, Belgium, 1917
